Rika begins a new world with Hanyū, but is getting tired of seeing her friends commit the same acts that lead them to terrible mistakes, until Keiichi proves to her that people can change their destinies if they want.

Keiichi's struggle to help Satoko forces him to confront the village elders, even the leader of the Sonozaki family. As the government succumbs to the pressure of Keiichi and his allies', Satoko's condition is also at its limit.

Takano's past is revealed in disjointed flashbacks, some of them showing her harsh childhood, while others to the time when she became involved with researchers of the Hinamizawa Syndrome.